it would be more usual to say, 'who owns this ball', but 'who is the owner of this ball' is also correct.
I think that, because the have used "pemilik" it is more correct to say "who is the owner" as compared to "memiliki" where it would be accurate to say "who owns. . ."
I agree with " Who owns this ball should be an acceptable answer verses who is the owner of this ball
Who owns this ball? Isn't this the same meaning or am I wrong here. Please help.